功率超声双振动头对5083合金半固态组织的影响  

Effect of Double Power Ultrasound Vibration Heads on Semi-solid Structure of 5083 Alloy

作　　者：李超[1] 王家宣[1] 刘昭亮[1] 李文杰[1] 方敏[1] 

机构地区：[1]南昌航空大学航空制造工程学院

出　　处：《特种铸造及有色合金》2011年第12期1112-1114,共3页Special Casting & Nonferrous Alloys

基　　金：中航一集团"材料热加工技术"航空科技重点实验室开放基金资助项目(ZK200801003)

摘　　要：采用自制的V型对向式双振动头功率超声处理装置,研究了熔体浇注温度和流道倾斜角度对5083合金半固态组织细化规律的影响。结果表明,功率超声对5083合金组织有明显的细化作用;流道倾角一定时,晶粒尺寸和形貌随着浇注温度的提高(试验所选范围)而变得细小和均匀;5083合金组织在流道倾角为20°时细化效果最佳。we have developed a V-shaped subtended double power ultrasound vibration heads treatment device to understand effects of pouring temperature and inclined angle of flow channel on the microstructure refinement of semi-solid 5083 alloy.The results show that power ultrasound can refine significantly microstructure of 5083 alloy structure.With a fixed inclined-angle,the grain size and morphology are refined with uniform distribution in the alloy with increasing in pouring temperature（the selected range of experiment）.In addition,with the inclined angle of 20° which is selected in three pouring angle（10°,20°,30°）,the desirable refinement in microstructure of 5083 alloy can be observed.

关 键 词：双振动头 功率超声 5083 组织 

分 类 号：TG663[金属学及工艺—金属切削加工及机床]